US4739735A - Internal combustion engine - Google Patents

Internal combustion engine Download PDF

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Publication number
US4739735A
US4739735A US06/820,421 US82042186A US4739735A US 4739735 A US4739735 A US 4739735A US 82042186 A US82042186 A US 82042186A US 4739735 A US4739735 A US 4739735A
Authority
US
United States
Prior art keywords
cylinder
cylinder head
intake
internal combustion
combustion engine
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
US06/820,421
Other languages
English (en)
Inventor
Katsumi Ichida
Toshinari Sonoda
Hiroshi Abe
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Honda Motor Co Ltd
Original Assignee
Honda Motor Co Ltd
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Priority claimed from JP708085A external-priority patent/JPH0248736B2/ja
Priority claimed from JP707985A external-priority patent/JPS61167146A/ja
Application filed by Honda Motor Co Ltd filed Critical Honda Motor Co Ltd
Assigned to HONDA GIKEN KOGYO KABUSHIKI KAISHA, A CORP. OF JAPAN reassignment HONDA GIKEN KOGYO KABUSHIKI KAISHA, A CORP. OF JAPAN ASSIGNMENT OF ASSIGNORS INTEREST. Assignors: ABE, HIROSHI, ICHIDA, KATSUMI, SONODA, TOSHINARI
Application granted granted Critical
Publication of US4739735A publication Critical patent/US4739735A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02F—CYLINDERS, PISTONS OR CASINGS, FOR COMBUSTION ENGINES; ARRANGEMENTS OF SEALINGS IN COMBUSTION ENGINES
    • F02F1/00—Cylinders; Cylinder heads 
    • F02F1/24—Cylinder heads
    • F02F1/242—Arrangement of spark plugs or injectors
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
    • F02B75/00—Other engines
    • F02B75/16—Engines characterised by number of cylinders, e.g. single-cylinder engines
    • F02B75/18—Multi-cylinder engines
    • F02B75/22—Multi-cylinder engines with cylinders in V, fan, or star arrangement
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02F—CYLINDERS, PISTONS OR CASINGS, FOR COMBUSTION ENGINES; ARRANGEMENTS OF SEALINGS IN COMBUSTION ENGINES
    • F02F1/00—Cylinders; Cylinder heads 
    • F02F1/24—Cylinder heads
    • F02F1/42—Shape or arrangement of intake or exhaust channels in cylinder heads
    • F02F1/4214—Shape or arrangement of intake or exhaust channels in cylinder heads specially adapted for four or more valves per cylinder
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02F—CYLINDERS, PISTONS OR CASINGS, FOR COMBUSTION ENGINES; ARRANGEMENTS OF SEALINGS IN COMBUSTION ENGINES
    • F02F7/00—Casings, e.g. crankcases or frames
    • F02F7/006—Camshaft or pushrod housings
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
    • F02B1/00—Engines characterised by fuel-air mixture compression
    • F02B1/02—Engines characterised by fuel-air mixture compression with positive ignition
    • F02B1/04—Engines characterised by fuel-air mixture compression with positive ignition with fuel-air mixture admission into cylinder
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
    • F02B75/00—Other engines
    • F02B75/16—Engines characterised by number of cylinders, e.g. single-cylinder engines
    • F02B75/18—Multi-cylinder engines
    • F02B2075/1804—Number of cylinders
    • F02B2075/1824—Number of cylinders six
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02B—INTERNAL-COMBUSTION PISTON ENGINES; COMBUSTION ENGINES IN GENERAL
    • F02B2275/00—Other engines, components or details, not provided for in other groups of this subclass
    • F02B2275/20—SOHC [Single overhead camshaft]
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F02—COMBUSTION ENGINES; HOT-GAS OR COMBUSTION-PRODUCT ENGINE PLANTS
    • F02F—CYLINDERS, PISTONS OR CASINGS, FOR COMBUSTION ENGINES; ARRANGEMENTS OF SEALINGS IN COMBUSTION ENGINES
    • F02F1/00—Cylinders; Cylinder heads 
    • F02F1/24—Cylinder heads
    • F02F2001/244—Arrangement of valve stems in cylinder heads
    • F02F2001/245—Arrangement of valve stems in cylinder heads the valve stems being orientated at an angle with the cylinder axis

Definitions

  • the present invention relates to an internal combustion engine and more particularly to the construction of an overhead valve type cylinder head.
  • Conventional internal combustion engines with overhead valves include a cylinder head normally having a head cover attachment surface lying parallel to the joining surface or interface along which the cylinder head is joined to the cylinder block.
  • the cylinder head also has an intake manifold attachment surface slanted at an angle with respect to the head cover attachment surface and the joining interface.
  • the head cover attachment surface and the intake manifold attachment surface must individually be machined at a high degree of machining accuracy.
  • valves are on both sides of the combustion chamber and the cylinder head is fully open at its upper end to provide a window to the valve mechanism chamber defined in the cylinder head, the window being closed by a head cover attached to the upper surface of the cylinder head. It is desirable to position the spark plug in the center of the ceiling of the combustion chamber and plug housings in which the spark plugs are accommodated extend between the head cover and the ceiling walls of combustion chambers in the cylinder head. Sealing members are interposed between the plug housings and the head cover. The spark plugs thus arranged can ignite the air-fuel mixture substantially centrally in the respective combustion chambers for a higher engine power output and better fuel economy.
  • the head cover When the head cover is to be detached from the cylinder head for inspecting and servicing the valve operating mechanism in the valve mechanism chamber, the head cover must also be separated from the plug housings. Therefore, at the time of attaching the head cover again to the cylinder head, it is necessary to mount the sealing members properly between the head cover and the plug housings. Such a mounting process is however tedious and time-consuming. If the seal membersare mounted improperly or damaged, lubricating oil in the valve mechanism chamber will leak into the plug housing.
  • Another object of the present invention is to provide an internal combustion engine cylinder head including spark plugs positioned in substantial alignment with the axes of cylinders and a head cover attachable to and detachable from the cylinder head separate from the plug housings in which the spark plugs are accommodated, so that both good engine performance and good serviceability of a valve operating mechanism can be ensured.
  • an internal combustion engine includes a cylinder head having attachment surfaces which lie in the same plane for the head cover and the intake manifold whereby the attachment surfaces can be machined simultaneously in one process with a common cutting tool.
  • the internal combustion engine cylinder head of this invention has a valve operating mechanism housed in a valve mechanism chamber for actuating intake and exhaust valves, the valve mechanism chamber being defined by a pair of opposite trapezoidal end walls extending from the bottom of the valve mechanism chamber and a ceiling wall integrally interconnecting the upper ends of the trapezoidal end walls.
  • the valve mechanism chamber has a pair of windows defined one on each side of the ceiling wall thereof between the trapezoidal end walls to provide access therethrough to the valve operating mechanism.
  • the cylinder head has cover attachment surfaces extending peripherally around the windows, respectively, and a plurality of cylindrical plug housings extending between the ceiling walls of the combustion chambers and the ceiling wall of the valve mechanism chamber for accommodating the spark plugs substantially in alignment with the axes of cylinders in a cylinder block on which the cylinder head is mounted.
  • the head covers can easily be attached to and detached from the cover attachment surfaces irrespective of the plug housings.
  • FIG. 1 is a front elevation view, partly in cross section, of a V-type multicylinder internal combustion engine according to the present invention
  • FIG. 2 is an enlarged cross-sectional view of the cylinder head portion of the internal combustion engine shown in FIG. 1;
  • FIG. 3 is a fragmentary bottom view of one combustion chamber ceiling of the cylinder head of the internal combustion engine.
  • FIGS. 4 and 5 are perspective view of the top and side, respectively, of one of the cylinder heads.
  • FIG. 1 shows a V-type multicylinder internal combustion engine including two cylinder arrays C1, C2 arranged in a V shape as viewed in front elevation.
  • the cylinder arrays C1, C2 define a central space or valley V therebetween in which there is disposed a common intake manifold Mi communicating with intake ports 8 of the cylinder arrays C1, C2.
  • the cylinder array C1 has a cylinder block 2 defining cylinders 1 therein and a cylinder head 3 secured to the upper surface of the cylinder block 2 with a gasket 4 interposed therebetween.
  • a piston 5 is slidably fitted in each of the cylinders 1.
  • the cylinder head 3 has a combustion chamber 6 defined between in its bottom surface and the top of the piston 5.
  • the cylinder blocks 2 of the cylinder arrays C1, C2 are integrally formed with a common crankcase 7 shared by the cylinder arrays C1, C2.
  • a common crankshaft 10 is rotatably supported in the crankcase 7 and operatively coupled to the pistons 5 in the cylinder arrays C1, C2 in a conventional manner.
  • each combustion chamber 6 has a ceiling wall surface on the cylinder head comprising two slanted surfaces 11a, 11b inclined progressively downwardly away from each other from a diametrical central line L extending approximately across the axis Ac of the cylinder 1 parallel to crankshaft 10.
  • the center lines L of all of the combustion chambers 6 in the respective cylinder arrays C1, C2 are on a common line.
  • Each of the intake ports 8 has a pair of inlet holes opening in the slanted surface 11a closer to the valley V, and each of the exhaust ports 9 has a pair of outlet holes opening in the opposite slanted surface 11b, each pair of inlet and outlet holes being arranged parallel to the line L.
  • a pair of intake valves 12 and another pair of exhaust valves 13 for opening and closing the intake and exhaust ports 8, 9 are slidably supported in valve guide sleeves 14, 15, respectively, which are mounted in the cylinder head 3.
  • spark plugs 16 are threadedly mounted in a ceiling wall 6a of the combustion chamber 6 with the spark plug electrodes positioned in the combustion chamber 6.
  • the spark plug 16 is substantially aligned with the axis Ac of the cylinder 1 and surrounded by the four intake and exhaust valves 12, 13 (see FIG. 3).
  • the cylinder head 3 defines therein a water jacket 17 above the combustion chambers 6 and a valve mechanism chamber 18 above the water jacket 17.
  • the valve mechanism chamber 18 accommodates therein a valve operating mechanism A for actuating the intake and exhaust valves 12, 13 to open and close the intake and exhaust ports 8, 9.
  • valve springs 19, 20 are disposed around the valve stems of the intake and exhaust valves 12, 13, respectively, and act thereon for normally urging them to close the intake and exhaust ports 8, 9.
  • a single cam shaft 21 is disposed substantially directly above the intake valves 12, i.e., in a position deviated from the cylinder axis Ac toward the valley V.
  • the cam shaft 21 extends parallel to the crankshaft 10 and is operable thereby through a synchronous transmission mechanism (not shown).
  • the cam shaft 21 is rotatably supported between a series of longitudinally spaced bearing bases 22 (only one shown) integral with the cylinder head 3 and bearing caps 24 (only one shown) fastened by bolts 23 to the bearing base 22.
  • the cam shaft 21 has intake and exhaust cams 21i, 21e operatively associated with the intake and exhaust valves 12, 13, respectively.
  • First cam followers 25 are interposed between the intake cams 21i and the heads or upper ends of the valve stems of the intake valves 12 and have sides held in sliding engagement with the intake cams 21i.
  • Each of the first cam followers 25 has an end pivotally supported on the hemispherical end 27a of a first hydraulic tappet 27 mounted in a supporting hole 26 defined in the cylinder head 3.
  • a second cam follower 28 has an intermediate portion with a side thereof held in sliding engagement with each exhaust cam 21e.
  • Each second cam follower 28 has an upper end operatively coupled through an interlink mechanism 29 to the exhaust valve 13 and a lower end pivotally supported on the hemispherical end 31a of a second hydraulic tappet 31 mounted in a supporting hole 30 defined in the cylinder head 3.
  • Each of the interlink mechanisms 29 comprises a pusher rod 32 having one end engaging the second cam follower 38 at a point spaced from the cam shaft 21, and a bellcrank-shaped rocker arm 33 having one end engaging the opposite end of the pusher rod 32 and the other end engaging the head or upper end of the valve stem of the exhaust valve 13.
  • the rocker arm 33 is pivotally supported on a rocker shaft 34 that is supported on bearing bosses 35 integral with the cylinder head 3.
  • the cam shaft 21 in each of the cylinder arrays C1, C2 is rotated by the crankshaft 10 through the non-illustrated synchronous transmission mechanism.
  • the raised portions of the intake cams 21i push the first cam followers 25 toward the intake valves 12, causing the followers 25 to pivot about the hemispherical ends 27a of the first hydraulic tappets 27.
  • the intake valves 12 open the intake port 8 against the resilient forces of the valve springs 19 for thereby introducing an air-fuel mixture into the combustion chamber 6 through the intake manifold Mi and the intake port 8.
  • the intake valves 12 close approximately at the end of the intake stroke of piston 5 which then starts the compression stroke toward the cylinder head 3.
  • the compressed air-fuel mixture in the combustion chamber 6 is ignited by a spark produced by the spark plug 16 as the piston 5 is about to reach the end of its compression stroke, the air-fuel mixture is combusted and the piston 5 begins an expansion or power stroke.
  • the spark plug 16 is positioned in alignment with or close to the axis Ac of the cylinder 1, the flame propagation distances from the igniting point to the peripheral edge of the combustion chamber 6 are substantially equal to allow the entire air-fuel mixture to be burned in a short period of time. Therefore, the power output of the engine is increased and its fuel economy is improved.
  • the first and second hyraulic tappets 27, 31 are extended in the known manner to cause the hemispherical ends 27a, 31a to push the ends of the cam followers 25, 28 for eliminating any gap which would otherwise be produced between cam followers 25, 28 and the heads of the stem of valve 12 and rod 32, respectively.
  • the valve mechanism chamber 18 is defined by a rectangular surrounding wall 40 extending upwardly from the peripheral edge of the bottom of the chamber 18, a pair of generally trapezoidal shaped end walls 41, 42 extending upwardly at the longitudinally opposite ends of the surrounding wall 40 beyond the upper edge thereof, and a ceiling wall 43 interconnecting the upper ends of the trapezoidal end walls 41, 42.
  • the cylinder head 3 has two windows 44, 45 defined one on each side of the ceiling wall 43 and extending between the end walls 41, 42.
  • the windows 44, 45 are open above the intake and exhaust valves 12, 13, respectively, to provide access to the valve operating mechanism A, which can therefore be inspected and serviced through the windows 44, 45.
  • the cam shaft 21 is positioned in the window 44 which is closer to the valley V.
  • Cover attachment surfaces 46, 47 are formed around the windows 44, 45, respectively, are slanted progressively downwardly from the ceiling wall 43 toward the surrounding wall 40.
  • Head covers 48, 49 are attached by bolts to the cover attachment surfaces 46, 47.
  • cylindrical plug housings 50 are integrally formed with the ceiling walls 6a of the combustion chambers 6 and project upwardly for accommodating the spark plugs 16 respectively therein.
  • the plug housings 50 extend through the water jacket 17 and the valve mechanism chamber 18 and have open upper ends.
  • the plug housings 50 are disposed between and integrally connected to the ceiling wall 43 of the valve mechanism chamber 18 and a ceiling wall 17a of the water jacket 17.
  • High-voltage ignition cables (not shown) are connected to the respective spark plugs 16 through the plug housings 50.
  • the spark plugs 16 can be attached and detached by a tool (not shown) insertable through the plug housings 50.
  • the head cover 48, 49 are positioned on each side of the plug housings 50 without direct engagement therewith, the head covers 48, 49 can easily be attached to and detached from the cylinder head 3 independently of the plug housings 50. Therefore, the valve operating mechanism A can efficiently be inspected and serviced.
  • Bridges 51, 52 are integrally joined between the plug housings 50 and the opposite side wall members of the surrounding wall 40.
  • the bearing bases 22 are integral with the bridges 51 and the bearing bosses 35 are integral with the bridge 52.
  • the cylinder head 3 has an attachment surface 53 to which the intake manifold Mi is attached and joint surfaces 54 of the bearing bases 22 to which the bearing caps 24 are joined.
  • the attachment surface 53 and the joint surfaces 54 lie in the same plane with the inner cover attachment surface 46 close to the valley V in a substantially horizontal common plane extending across the cylinder arrays C1, C2, as shown in FIG. 1. Therefore, these surfaces 53, 54, 46 of the cylinder arrays C1, C2 can be machined simultaneously with a common cutting tool, whereby the cylinder head 3 can be machined highly accurately and efficiently.
  • the outer cover attachment surface 47 remote from the valley V is defined in a substantially vertical plane to minimize the maximum outer dimensions of each of the cylinder arrays C1, C2. Since only the cover 49 is attached to the surface 47 and no other engine components are attached to the surface 47, the angle and spacing of surface 47 relative to the other surfaces on the cylinder head are not critical whereby the machine of surface 47 may be easily accomplished.

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  • Engineering & Computer Science (AREA)
  • Chemical & Material Sciences (AREA)
  • Combustion & Propulsion (AREA)
  • Mechanical Engineering (AREA)
  • General Engineering & Computer Science (AREA)
  • Cylinder Crankcases Of Internal Combustion Engines (AREA)
  • Valve-Gear Or Valve Arrangements (AREA)
US06/820,421 1985-01-18 1986-01-17 Internal combustion engine Expired - Lifetime US4739735A (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
JP708085A JPH0248736B2 (ja) 1985-01-18 1985-01-18 Nainenkikan
JP60-7080 1985-01-18
JP60-7079 1985-01-18
JP707985A JPS61167146A (ja) 1985-01-18 1985-01-18 内燃機関

Publications (1)

Publication Number Publication Date
US4739735A true US4739735A (en) 1988-04-26

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Application Number Title Priority Date Filing Date
US06/820,421 Expired - Lifetime US4739735A (en) 1985-01-18 1986-01-17 Internal combustion engine

Country Status (8)

Country Link
US (1) US4739735A (de)
AU (1) AU603332B2 (de)
CA (1) CA1278477C (de)
DE (1) DE3601274A1 (de)
FR (1) FR2576356A1 (de)
GB (1) GB2169961B (de)
IT (1) IT1190176B (de)
SE (1) SE8600191L (de)

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4793297A (en) * 1986-07-09 1988-12-27 Honda Giken Kogyo Kabushiki Kaisha Valve operating mechanism for internal combustion engine
US4823747A (en) * 1986-12-02 1989-04-25 Daimler-Benz Aktiengesellschaft Cylinder head camshaft mounting arrangement
US4911113A (en) * 1987-12-28 1990-03-27 Yamaha Hatsudoki Kabushiki Kaisha Valve actuating device for multiple valve type engine
US5101777A (en) * 1990-02-20 1992-04-07 Yamaha Hatsudoki Kabushiki Kaisha Automobile engine structure
US5119776A (en) * 1991-09-30 1992-06-09 Chrysler Corporation Compact bearing cap for overhead camshaft
US5184579A (en) * 1991-02-22 1993-02-09 Suzuki Motor Corporation Cylinder head structure of internal combustion engine
US6408809B2 (en) * 2000-04-17 2002-06-25 Yamaha Hatsudoki Kabushiki Kaisha Intake control device for multi-cylinder V-type engine
US6547254B2 (en) * 2000-07-11 2003-04-15 Honda Giken Kogyo Kabushiki Kaisha Seal structure between cylinder head and head cover in engine
US20050211210A1 (en) * 2004-03-25 2005-09-29 Masachika Arao Four valves per cylinder engine head

Families Citing this family (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPH02149769A (ja) * 1988-11-30 1990-06-08 Fuji Heavy Ind Ltd ４バルブ式エンジン燃焼室の点火プラグ配列装置
DE4216316A1 (de) * 1992-05-16 1993-11-18 Basf Ag Tertiäre Amide und ihre Verwendung als schaumarme Netzmittel in der Textilindustrie
DE19928838C1 (de) 1999-06-24 2001-02-15 Otmar Gaehrken Zylinderkopf
JP6461199B2 (ja) * 2015-01-06 2019-01-30 愛知機械工業株式会社 内燃機関

Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2927564A (en) * 1956-09-17 1960-03-08 Gen Motors Corp Charge forming apparatus
US2963009A (en) * 1955-01-19 1960-12-06 Gen Motors Corp Engine
US3738338A (en) * 1971-04-23 1973-06-12 Amf Inc Internal combustion engines
US4527518A (en) * 1983-07-05 1985-07-09 Honda Giken Kogyo Kabushiki Kaisha Internal combustion engine having single overhead camshaft
US4621597A (en) * 1983-10-04 1986-11-11 Honda Giken Kogyo Kabushiki Kaisha Cylinder head for double overhead cam engine

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2856909A (en) * 1952-11-12 1958-10-21 Gen Motors Corp Engine
GB850129A (en) * 1958-05-30 1960-09-28 Austin Motor Co Ltd Overhead valve internal combustion engines
US3884201A (en) * 1973-03-27 1975-05-20 American Challenger Corp Marine engine
AT393297B (de) * 1979-03-23 1991-09-25 Denzel Kraftfahrzeug Wolfgang Zylinderkopf fuer brennkraftmaschinen
DE3016823C2 (de) * 1980-04-23 1982-11-18 Gebrüder Sulzer AG, 8401 Winterthur Drehschieberanordnung für eine Brennkraftmaschine

Patent Citations (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2963009A (en) * 1955-01-19 1960-12-06 Gen Motors Corp Engine
US2927564A (en) * 1956-09-17 1960-03-08 Gen Motors Corp Charge forming apparatus
US3738338A (en) * 1971-04-23 1973-06-12 Amf Inc Internal combustion engines
US4527518A (en) * 1983-07-05 1985-07-09 Honda Giken Kogyo Kabushiki Kaisha Internal combustion engine having single overhead camshaft
US4621597A (en) * 1983-10-04 1986-11-11 Honda Giken Kogyo Kabushiki Kaisha Cylinder head for double overhead cam engine

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4793297A (en) * 1986-07-09 1988-12-27 Honda Giken Kogyo Kabushiki Kaisha Valve operating mechanism for internal combustion engine
US4823747A (en) * 1986-12-02 1989-04-25 Daimler-Benz Aktiengesellschaft Cylinder head camshaft mounting arrangement
US4911113A (en) * 1987-12-28 1990-03-27 Yamaha Hatsudoki Kabushiki Kaisha Valve actuating device for multiple valve type engine
US5101777A (en) * 1990-02-20 1992-04-07 Yamaha Hatsudoki Kabushiki Kaisha Automobile engine structure
US5184579A (en) * 1991-02-22 1993-02-09 Suzuki Motor Corporation Cylinder head structure of internal combustion engine
US5119776A (en) * 1991-09-30 1992-06-09 Chrysler Corporation Compact bearing cap for overhead camshaft
US6408809B2 (en) * 2000-04-17 2002-06-25 Yamaha Hatsudoki Kabushiki Kaisha Intake control device for multi-cylinder V-type engine
US6547254B2 (en) * 2000-07-11 2003-04-15 Honda Giken Kogyo Kabushiki Kaisha Seal structure between cylinder head and head cover in engine
US20050211210A1 (en) * 2004-03-25 2005-09-29 Masachika Arao Four valves per cylinder engine head

Also Published As

Publication number Publication date
SE8600191D0 (sv) 1986-01-16
GB8601094D0 (en) 1986-02-19
GB2169961A (en) 1986-07-23
DE3601274C2 (de) 1990-02-08
IT8647540A0 (it) 1986-01-16
SE8600191L (sv) 1986-07-19
DE3601274A1 (de) 1986-07-24
AU5244586A (en) 1986-07-24
GB2169961B (en) 1989-06-14
CA1278477C (en) 1991-01-02
FR2576356A1 (fr) 1986-07-25
AU603332B2 (en) 1990-11-15
IT1190176B (it) 1988-02-16

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